EP 4137719 A1 20230222 - SEAL WITH SURFACE INDENTS
Title (en)
SEAL WITH SURFACE INDENTS
Title (de)
DICHTUNG MIT OBERFLÄCHENVERTIEFUNGEN
Title (fr)
JOINT D'ÉTANCHÉITÉ AVEC EMPREINTES DE SURFACE
Publication
Application
Priority
US 202117403062 A 20210816
Abstract (en)
A seal assembly (10) for preventing the flow of fluid includes a rotating component (14) having a first sealing surface (16), a stationary component (18) coaxial with the rotating component (14) and having a second sealing surface (20) with the second sealing surface (20) configured to form a seal with the first sealing surface (16) of the rotating component (14), and indents (22) in one of the first sealing surface (16) and the second sealing surface (20). The indents (22) are configured to control a width of a gap (24) between the first sealing surface (16) and the second sealing surface (20) to allow fluid to flow into the gap (24). At least two of the indents (22) are at least partially aligned in the radial direction.
IPC 8 full level
F16J 15/34 (2006.01)
CPC (source: EP US)
F16J 15/3412 (2013.01 - EP); F16J 15/3424 (2013.01 - EP); F16J 15/40 (2013.01 - US); F04C 15/0038 (2013.01 - EP); F04C 2210/203 (2013.01 - EP)
Citation (search report)
- [X] US 2020332901 A1 20201022 - IMURA TADATSUGU [JP]
- [XA] EP 1918617 A1 20080507 - REXNORD IND LLC [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4137719 A1 20230222; US 11662026 B2 20230530; US 2023048539 A1 20230216
DOCDB simple family (application)
EP 22188158 A 20220801; US 202117403062 A 20210816